Published: Jul 10, 2012 6:18 PM EDT

GERMANTOWN, Ohio (AP) - Health officials say at least 36 people are sick and nine have been hospitalized after an E. coli outbreak among people who ate at a southwest Ohio picnic.
The illnesses were reported in Germantown, southwest of Dayton. Spokesman Bill Wharton of Montgomery County's health department says those who became ill were among 200 to 300 people who attended a July 3 customer appreciation picnic at a lawn care business.
He said five have been confirmed with a strain of E. coli. He did not know the conditions of those hospitalized.
A doctor who treated some patients says they possibly ate the same contaminated dish.
The Dayton Daily News ( reports health officials are trying to track the outbreak.
The bacteria can cause diarrhea, dehydration and, in severe cases, kidney failure.
Information from: Dayton Daily News,

(Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)